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CVE-2012-3935

25
FAUCET Score

CVE-2012-3935 describes a denial-of-service vulnerability affecting Cisco Unified Presence (CUP) before version 8.6(3) and Jabber Extensible Communications Platform (XCP) before version 5.3. An unauthenticated remote attacker can exploit this flaw by sending a specially crafted XMPP stream header, leading to a process crash on the affected systems. This vulnerability carries a high CVSS score of 7.8, indicating a critical severity. It is easily exploitable over the network with low attack complexity and requires no authentication, resulting in a complete loss of availability (denial of service). There is no evidence of active exploitation, nor are there publicly available exploit modules in Metasploit or Nuclei, or entries in ExploitDB. The vulnerability has garnered minimal community discussion and media coverage, suggesting a low level of public awareness or concern.

Impacted Technologies

VendorProductVersion(s)CPE
<= 8.6\(2\)CPE matchmatch criteria
cpe:2.3:a:cisco:unified_presence:*:*:*:*:*:*:*:*
1.0CPE matchmatch criteria
cpe:2.3:a:cisco:unified_presence:1.0:*:*:*:*:*:*:*
6.0CPE matchmatch criteria
cpe:2.3:a:cisco:unified_presence:6.0:*:*:*:*:*:*:*
6.0\(1\)CPE matchmatch criteria
cpe:2.3:a:cisco:unified_presence:6.0\(1\):*:*:*:*:*:*:*
6.0\(2\)CPE matchmatch criteria
cpe:2.3:a:cisco:unified_presence:6.0\(2\):*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

7.8HIGH

AV:N/AC:L/Au:N/C:N/I:N/A:C

Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
COMPLETE
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Exploitability Score
10.0
Impact Score
6.9
CvssVersion
2.0

Exploit Intelligence

EPSS Score
2.77%
Probability of exploitation in next 30 days
EPSS Percentile
84.8%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0277 is in the 73rd percentile among its peer group of 51,506 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

osvdb.org / 85421
secunia.com / advisories/50562
exchange.xforce.ibmcloud.com / vulnerabilities/78457
tools.cisco.com / security/center/content/CiscoSecurityAdvisory/cisco-sa-20120912-cupxcp
securitytracker.com / id